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Determinação sequencial rápida de As e Sb, Bi e Pb por espectrometria de absorção atômica com geração de hidretos
(Universidade Federal de São Carlos, 2012-03-22)
In this study it was developed two systems, one for the fast sequencial determination of As and Sb and other for Bi and Pb using flame atomic absorption spectrometry with hydride generation. To optimize the system for the ...
Avaliação do uso de múltiplas linhas para a determinação de metais por espectrometria de emissão óptica com plasma acoplado indutivamente
(Universidade Federal de São Carlos, 2010-06-11)
The aim of this thesis was the evaluation of the use of multiple lines for determination of metals by inductively coupled plasma optical emission spectrometry (ICP OES) with Littrow optical system, Echelle polychromator ...
Estudo da eletro-oxidação de moléculas orgânicas pequenas sobre multicamadas metálicas Ptpc/Rh/Pt e Ptpc/Ru/Pt utilizando FTIR in situ
(Universidade Federal de São Carlos, 2018-09-06)
The modification of platinum-based electrodes for the efficiency optimization of the fuel cells has generated a great scientific interest, due to the problems associated with the poisoning of the catalytic surface. In ...
Desenvolvimento de nanofibras poliméricas por fiação por sopro em solução visando aplicação em engenharia de tecido
(Universidade Federal de São Carlos, 2017-11-09)
Tissue engineering is now essential for medical applications, such as in implants for biomedical devices, artificial organs, healing and skin regeneration. The success of these applications depends on the development of ...
Complexos contendo bases de Schiff simétricas e não-simétricas: I – Complexos mono- e trinucleares de Níquel(II) e de Cobre(II) com ligantes do tipo salen para oxidação de catecóis; II – Complexos de Zinco(II) com aminotroponiminatos para polimerizações
(Universidade Federal de São Carlos, 2018-11-30)
In this work two topics involving symmetric and non-symmetric Schiff bases were investigated. In the first part, the mono- and trinuclear complexes of nickel (II) and copper (II) were studied as catalysts in the oxidation ...
Desenvolvimento de procedimentos para análise inorgânica de biodiesel usando técnicas espectroanalíticas
(Universidade Federal de São Carlos, 2010-08-25)
In this work, analytical procedures are proposed for the determination of major and trace elements in biodiesel samples employing flame atomic absorption spectrometry (F AAS), inductively coupled plasma optical emission ...
Construção e aplicação analítica de espectrômetro de emissão atômica com atomização eletrotérmica em filamento de tungstênio
(Universidade Federal de São Carlos, 2011-02-04)
This thesis has two lines of development based on measurements of atomic emission using a tungsten coil electrothermal atomizer. The first line dealt with the construction of a tungsten coil atomic emission spectrometer ...
Synthesis, structural diversification, biological activities and biotransformation of dibenzylacetones : simple chemistry furnishing potent compounds
(Universidade Federal de São Carlos, 2016-02-23)
The structural diversity of known compounds holding two benzene rings
directly connected to each other (Bis-phenyl), or separated by a carbon-chain (Bisarylalkane),
is nowadays generated intensive scientific studies ...
Degradação eletroquímica dos herbicidas tebutiuron e picloram usando anodo de diamante dopado com boro ou de dióxido de chumbo em um reator filtro-prensa
(Universidade Federal de São Carlos, 2015-10-23)
The electrochemical degradation of the herbicides tebuthiuron (TBT) and picloram (PCL) was carried out in a filter-press reactor using boron-doped diamond (BDD) or lead dioxide as anode, investigating the effect of current ...
Estudo de Schinus terebinthifolius, Anacardium humile e Macairea urundeuva no controle das formigas cortadeiras
(Universidade Federal de São Carlos, 2013-04-24)
Leaf-cutting ants are known by their strong power of to pulling down several vegetable crops and to cause economic lost to the agriculture. Several methods have been used for their control such as the use of halogenated, ...